Datasheet

AD8021
Rev. F | Page 3 of 28
SPECIFICATIONS
V
S
= ±5 V, @ T
A
= 25°C, R
L
= 1 kΩ, gain = +2, unless otherwise noted.
Table 1.
AD8021AR/AD8021ARM
Parameter Conditions
Min Typ Max Unit
DYNAMIC PERFORMANCE
−3 dB Small Signal Bandwidth
G = +1, C
C
= 10 pF, V
O
= 0.05 V p-p 355 490 MHz
G = +2, C
C
= 7 pF, V
O
= 0.05 V p-p 160 205 MHz
G = +5, C
C
= 2 pF, V
O
= 0.05 V p-p 150 185 MHz
G = +10, C
C
= 0 pF, V
O
= 0.05 V p-p 110 150 MHz
Slew Rate, 1 V Step
G = +1, C
C
= 10 pF 95 120 V/μs
G = +2, C
C
= 7 pF 120 150 V/μs
G = +5, C
C
= 2 pF 250 300 V/μs
G = +10, C
C
= 0 pF 380 420 V/μs
Settling Time to 0.01%
V
O
= 1 V step, R
L
= 500 Ω 23 ns
Overload Recovery (50%)
±2.5 V input step, G = +2 50 ns
DISTORTION/NOISE PERFORMANCE
f = 1 MHz
HD2
V
O
= 2 V p-p −93 dBc
HD3
V
O
= 2 V p-p −108 dBc
f = 5 MHz
HD2
V
O
= 2 V p-p −70 dBc
HD3
V
O
= 2 V p-p −80 dBc
Input Voltage Noise
f = 50 kHz 2.1 2.6 nV/√Hz
Input Current Noise
f = 50 kHz 2.1 pA/√Hz
Differential Gain Error
NTSC, R
L
= 150 Ω 0.03 %
Differential Phase Error
NTSC, R
L
= 150 Ω 0.04 Degrees
DC PERFORMANCE
Input Offset Voltage
0.4 1.0 mV
Input Offset Voltage Drift
T
MIN
to T
MAX
0.5 μV/°C
Input Bias Current
+Input or −input 7.5 10.5 μA
Input Bias Current Drift
10 nA/°C
Input Offset Current
0.1 0.5 ±μA
Open-Loop Gain
82 86 dB
INPUT CHARACTERISTICS
Input Resistance
10 MΩ
Common-Mode Input Capacitance
1 pF
Input Common-Mode Voltage Range
−4.1 to +4.6 V
Common-Mode Rejection Ratio
V
CM
= ±4 V −86 −98 dB
OUTPUT CHARACTERISTICS
Output Voltage Swing
−3.5 to +3.2 −3.8 to +3.4 V
Linear Output Current
60 mA
Short-Circuit Current
75 mA
Capacitive Load Drive for 30% Overshoot
V
O
= 50 mV p-p/1 V p-p 15/120 pF
DISABLE CHARACTERISTICS
Off Isolation
f = 10 MHz −40 dB
Turn-On Time
V
O
= 0 V to 2 V, 50% logic to 50% output 45 ns
Turn-Off Time
V
O
= 0 V to 2 V, 50% logic to 50% output 50 ns
DISABLE Voltage—Off/On
V
DISABLE
− V
LOGIC REFERENCE
1.75/1.90 V
Enabled Leakage Current
LOGIC REFERENCE = 0.4 V 70 μA
DISABLE = 4.0 V
2 μA